| commit | 1453de5aa93c48779e1a5cdedec6e1493f6988eb | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Fri Sep 01 22:52:28 2006 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Fri Sep 01 22:52:28 2006 +0000 |
| tree | db68bb6648c20f5dcedce3f9624ef98c24588ca6 | |
| parent | aca36b932958a7e4a27786dd76e37259fbaa67e0 [diff] |
Oops. Bad typo. Without the check of N1.hasOneUse() bad things can happen.
Suppose the TokenFactor can reach the Op:
[Load chain]
^
|
[Load]
^ ^
| |
/ \-
/ |
/ [Op]
/ ^ ^
| .. |
| / |
[TokenFactor] |
^ |
| |
\ /
\ /
[Store]
If we move the Load below the TokenFactor, we would have created a cycle in
the DAG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30040 91177308-0d34-0410-b5e6-96231b3b80d8